Surf Forecasts:
How big are the waves at Katagai today (01 Sep):
- Morning surf: Morning surf (01 Sep, local time) - 3ft (0.9m), 12s period with ESE swell.
- Afternoon surf: Afternoon surf (01 Sep, local time) - 3.5ft (1.0m), 11s period with ESE swell.
- Evening surf: Evening surf (01 Sep, local time) - 3.5ft (1.0m), 12s period with ESE swell.
The current surf forecast for Katagai at 5AM is: 0.9m 12s primary swell from a East-southeast direction and 0.7m 7s secondary swell from a East-northeast direction, 1.2m 7s secondary swell from a Northeast direction (forecast issued at 02:00am September 01). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Sep) | 3ft (0.9m) | 12s |
| Afternoon (01 Sep) | 3.5ft (1.0m) | 11s |
| Evening (01 Sep) | 3.5ft (1.0m) | 12s |
Table - waves today at Katagai. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 29mm), heaviest during Thu night. Warm (max 29°C on Thu morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 12 | E 11 | E 11 | E 11 | ESE 10 | ESE 10 | ESE 10 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | S 8 | S 8 | E 10 | SSW 8 | SSW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 193 | 230 | 218 | 211 | 337 | 259 | 193 | 288 | 242 | 233 | 229 | 170 | 163 | 131 | 246 | 209 | 133 | 133 | 112 | 91 | 116 | 75 | 94 | 78 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross | cross | glassy | glassy | glassy | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 6:21AM1.31m | 6:07PM1.42m | 7:10AM1.22m | 6:28PM1.43m | 8:13AM1.10m | 6:51PM1.42m | ||||||||||||||||||
Low Tide | 00:10AM0.37m | 12:08PM0.59m | 00:49AM0.32m | 12:30PM0.73m | 1:35AM0.31m | 12:46PM0.87m | ||||||||||||||||||
 | |  | | | |  |  | | | | | |  | |  | | |  | | | | |  | |
 | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | 3 | 5 |
Temp °C | 24 | 24 | 23 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 29 | 28 | 26 | 23 |
Feels °C | 25 | 26 | 24 | 26 | 26 | 27 | 26 | 27 | 27 | 28 | 28 | 30 | 29 | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 12 | E 11 | E 11 | E 11 | ESE 10 | ESE 10 | ESE 10 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | E 10 | E 10 | SSE 5 | SSE 6 |
| kJ | 193 | 230 | 218 | 211 | 337 | 259 | 193 | 288 | 242 | 233 | 229 | 170 | 163 | 131 | 246 | 209 | 133 | 133 | 112 | 77 | 73 | 71 | 25 | 46 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 9 | E 7 | S 8 | S 8 | S 8 | ESE 15 | ESE 14 | ESE 13 | ESE 13 | S 8 | S 9 | E 7 | E 6 | E 6 | ESE 6 | SE 5 | S 8 | E 10 | E 10 |
| kJ | 68 | 55 | 55 | 42 | 90 | 6 | 23 | 6 | 6 | 6 | 42 | 21 | 58 | 63 | 12 | 13 | 23 | 13 | 12 | 12 | 21 | 34 | 71 | 49 |
Swell 3 Height (m) Direction Period (s) | SSW 9 | SE 16 | SSW 8 | ESE 15 | SSW 8 | SSW 8 | S 9 | E 18 | ESE 17 | ESE 16 | S 8 | S 8 | S 8 | S 8 | E 18 | E 18 | S 9 | S 8 | S 8 | S 8 | S 8 | E 6 | SE 10 | SE 10 |
| kJ | 16 | 10 | 14 | 21 | 24 | 14 | 6 | 6 | 30 | 26 | 5 | 5 | 5 | 5 | 6 | 6 | 13 | 12 | 22 | 12 | 22 | 10 | 15 | 15 |
Wind waves Height (m) Direction Period (s) | NE 7 | — | NE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 8 | S 8 | SSW 8 | SSW 8 | SSW 8 |
| kJ | 151 | — | 160 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 91 | 116 | 75 | 94 | 78 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 52 | 40 | 0 | 81 | 40 | 40 | 37 | 37 | 37 | 0 | 0 | 0 | 23 | 23 | 23 | 23 | 18 | 18 | 18 | 23 | 23 | 18 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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